package com.example.demo.config;

import com.example.demo.common.AppVariable;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * @Author: wenjingyuan
 * @Date: 2023/09/10/20:09
 * @Description:用户拦截器
 */
public class LoginIntercept implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        HttpSession session= request.getSession(false);
        if(session!=null && session.getAttribute(AppVariable.SESSION_USERINFO_KEY)!=null){
            //用户已登录
            return true;
        }
        //跳转到登录页面
        response.sendRedirect("/login.html");
        return false;
    }
}
